AKD Neutral Sizing Agent

High-Performance Alkylketene Dimer (AKD) Neutral Sizing Agent LY-AKD301

LY-AKD301 is a premium, high-efficiency Alkylketene Dimer (AKD) emulsion designed to entirely overcome the inherent operational disadvantages associated with traditional acid sizing systems. Available in both Ordinary and High-Temperature-Resistant grades, this advanced chemical agent provides superior sizing efficiency across a massive spectrum of paper grades.

By establishing permanent covalent bonds with cellulose fibers under neutral-to-alkaline conditions, LY-AKD301 significantly boosts physical paper strength, improves energy efficiency, and maximizes paper mill throughput. It serves as a benchmark solution for contemporary high-speed paper machines prioritizing clean wet-end operations and minimized carbon footprints.

المواصفات والمعايير الفنية

الخاصية / المؤشر	المعيار الفني
المظهر	سائل أبيض حليبي اللون
المحتوى الصلب	(12.5%, 15%, 18%) ± 1%
اللزوجة (25 درجة مئوية)	≤ 50 ميللي باسكال·ثانية
قيمة الرقم الهيدروجيني	2.0 – 4.0
نوع الشحنة الأيونية	كاتيوني
الذوبانية	يذوب بسهولة في الماء البارد

المزايا التقنية الأساسية وعرض القيمة

1. Exceptional Sizing Efficiency & Heavy Sizing Stability

LY-AKD301 features high reactive chemical activity, providing an exceptional sizing effect that allows mills to run heavy sizing configurations without sizing regression or aging degradation. The resultant paper gains superior, long-lasting liquid resistance, which significantly extends the physical lifespan and storage durability of finished paper products.

2. Comprehensive Improvement in Paper Quality

Integrating LY-AKD301 into the wet end elevates multiple critical physical and optical parameters of the paper sheet. It yields noticeable improvements in whiteness, opacity, printability, and mechanical surface strength. This ensures sharper ink definitions and minimizes dusting or picking during high-speed commercial printing runs.

3. Maximum Fiber Cost Optimization via Ground Calcium Carbonate (GCC)

Operating in a reliable neutral sizing environment allows paper mills to completely substitute expensive calcined clay or talc with heavy ground calcium carbonate (GCC) as a primary filler. Furthermore, the system’s chemical tolerance permits a higher utilization rate of short fibers and broke (recycled damaged paper) instead of long fibers, dramatically lowering the overall cost per ton of papermaking.

4. Energy Conservation & Cleaner Wet-End Operations

The high fiber affinity of LY-AKD301 decreases refining energy consumption and minimizes steam demands in the drying section, leading to notable energy savings. Additionally, it maintains a cleaner, deposit-free wet-end system, significantly curtails paper machine corrosion, and simplifies white water loop closure to drastically lower wastewater treatment volumes.

إرشادات الاستخدام والجرعة

To capture the highest chemical retention and target Cobb values, implement the following industrial procedures:

• Addition Points: LY-AKD301 can be added directly as a concentrate to thick stock or diluted and fed into the stock mixing tank. For maximum distribution, it is best introduced continuously via a metering pump directly before or after the fan pump.
• System Synergy: For optimal performance, it should be co-dosed alongside cationic starch and polyacrylamide (PAM) retention aids.
• الجرعة الموصى بها:
  • For standard sizing targets: 1% to 2% based on absolute dry pulp weight.
  • For heavy barrier/sizing targets: 3% to 4% based on absolute dry pulp weight.
• System Environment: Sizing must be executed under strict neutral papermaking conditions.

التطبيقات الرئيسية للمنتج

LY-AKD301 features an extraordinarily wide application scope across modern paper manufacturing sectors, proving highly effective for:

• Culture Paper & Art Paper: Premium writing and printing sheets, high-end offset paper, and coated copper-board papers demanding strict brightness and anti-aging properties.
• Packaging Paper Grades: Premium linerboards, folding boxboards, and kraft materials requiring consistent internal sizing protection.

التعبئة والتخزين والمناولة

• لوجستيات التعبئة والتغليف: يتم شحنها في عبوات متينة براميل بلاستيكية سعة 200 كجم أو حاويات IBC سعة 1,000 كجم to seamlessly match automated chemical feeding infrastructures.
• بيئة التخزين: الحفاظ على الظروف المثالية داخل منشأة باردة وجافة وجيدة التهوية عند درجات حرارة بين 5 درجات مئوية و30 درجة مئوية. تجنب أي تعرض مباشر لأشعة الشمس وتجنب ظروف التجمد.
• مدة الصلاحية: 3 أشهر من تاريخ التصنيع عند تخزين المنتج في عبوته الأصلية غير المفتوحة.